>Could you explain what is wrong?
I would not be so sure whether you can just replace rcu_read_lock by
preempt_disable in RT, given thatRT's rcu_read_lock is a little more
code than just disabling preempt.
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,17)
+#if !defined(CONFIG_PREEMPT_RT)
rcu_read_lock();
+#else
+ preempt_disable();
+#endif
#else
read_lock(&tasklist_lock);
#endif
--
fglrx driver does not work in RT kernel
https://bugs.launchpad.net/bugs/159941
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